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Find Scattering parameters from this picture

时间:04-04 整理:3721RD 点击:
Hello. I need find the scattering parameters.



To adapt a load ZL=50-100j ohm to a generator with output impedance Z0=50 ohm, is used a lossless structure as shown in Fig. Get the numerically matrix of parameters SA and S matrix of the two-port parameters remaining between generator and load ( between the plane 1 and plane 2 ) referred both to Z0 for adaptation.

Thanks you very much.

[SA]={s11, s12, s21, s22}

I assume this [SA] is characterized by reference impedance=50ohm.

s11_new=s11*exp(-j*2*(2*pi/lamda*lamda/8))=s11*exp(-j*pi/2)
s22_new=s22

s12_new=s12*exp(-j*(2*pi/lamda*lamda/8))=s12*exp(-j*pi/4)
s21_new=s21*exp(-j*(2*pi/lamda*lamda/8))=s21*exp(-j*pi/4)

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